We all check how many bars we have on our smartphones and assume it’s an accurate guide to how strong our signal is. But what do those bars really represent? “There’s no standard. They do indicate ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Brent Butterworth Brent Butterworth is a writer dedicated to audio gear. He ...

Schemes of alternating current comparators with an adjustable switching threshold are presented, which allow using color-dynamic indication to control the above- and sub-threshold values of ...

Join the community discussion that is already taking place about this articleUnderstanding Your Signal Analyzer’s “Dynamic Range” Despite having just used the term “dynamic range” in the title myself ...

Find a downloadable version of this story in pdf format at the end of the story. When measuring a circuit or device with a network analyzer, engineers generally inject a signal and believe that the ...

The trick is to treat the mobile signal like a radio problem instead of just blaming my provider.